Need Help!- I and J 3D arcs

[mmachining]

Like some help please. I am trying to make a part that I want to mill a radi in the X and Z plane using I and J. right now all I get when I generate G code is X,Y, and Z. Anyone got any helpful hints?

[Mitsui Seiki]

Originally Posted by mmachining Like some help please. I am trying to make a part that I want to mill a radi in the X and Z plane using I and J. right now all I get when I generate G code is X,Y, and Z. Anyone got any helpful hints?

You need I and K with X,Z.

[mmachining]

I see so in X,Y I diable the K factor and in X,Z or Y,Z I enable is that right?

[Mitsui Seiki]

Originally Posted by mmachining I see so in X,Y I diable the K factor and in X,Z or Y,Z I enable is that right?

You don't disable or enable anything.Ok,sorta.
Just use the right plane.


XY=G17 Plane IJ
XZ=G18 Plane IK
YZ=G19 Plane JK
With G18 you work in (Enable) the XZ plane.

[Mitsui Seiki]

This program produce a little bowl.
Download and install CNCsimulator an try it.
http://www.cncsimulator.com/

G40  G80 G49 G18 G21 
G0  G90 G54 X0 Y0 T4 S2000 M3 
G43  Z100 H4 M8 
G1  X0 Y14.8 F500 
Z-0.1  F150 
G2  X0 Y14.8 I0 J-14.8 
G0  Z2 
G1  X-14.8 Y0 F150 
Z-0.1  
G3  X14.8 Y0 I14.8 K0 
G0  Z2 
G1  X-14.77 Y0.92 F150 
Z-0.1  
G3  X14.77 Y0.92 I14.77 K0 
G0  Z2 
G1  X-14.685 Y1.84 F150 
Z-0.1  
G3  X14.685 Y1.84 I14.685 K0 
G0  Z2 
G1  X-14.54 Y2.76 F150 
Z-0.1  
G3  X14.54 Y2.76 I14.54 K0 
G0  Z2 
G1  X-14.335 Y3.68 F150 
Z-0.1  
G3  X14.335 Y3.68 I14.335 K0 
G0  Z2 
G1  X-14.065 Y4.6 F150 
Z-0.1  
G3  X14.065 Y4.6 I14.065 K0 
G0  Z2 
G1  X-13.73 Y5.52 F150 
Z-0.1  
G3  X13.73 Y5.52 I13.73 K0 
G0  Z2 
G1  X-13.325 Y6.44 F150 
Z-0.1  
G3  X13.325 Y6.44 I13.325 K0 
G0  Z2 
G1  X-12.84 Y7.36 F150 
Z-0.1  
G3  X12.84 Y7.36 I12.84 K0 
G0  Z2 
G1  X-12.265 Y8.28 F150 
Z-0.1  
G3  X12.265 Y8.28 I12.265 K0 
G0  Z2 
G1  X-11.59 Y9.2 F150 
Z-0.1  
G3  X11.59 Y9.2 I11.59 K0 
G0  Z2 
G1  X-10.795 Y10.12 F150 
Z-0.1  
G3  X10.795 Y10.12 I10.795 K0 
G0  Z2 
G1  X-9.855 Y11.04 F150 
Z-0.1  
G3  X9.855 Y11.04 I9.855 K0 
G0  Z2 
G1  X-8.715 Y11.96 F150 
Z-0.1  
G3  X8.715 Y11.96 I8.715 K0 
G0  Z2 
G1  X-7.29 Y12.88 F150 
Z-0.1  
G3  X7.29 Y12.88 I7.29 K0 
G0  Z2 
G1  X-5.345 Y13.8 F150 
Z-0.1  
G3  X5.345 Y13.8 I5.345 K0 
G0  Z2 
G1  X-1.535 Y14.72 F150 
Z-0.1  
G3  X1.535 Y14.72 I1.535 K0 

G0  Z2 
G1  X-14.8 Y0 F150 
Z-0.1  
G3  X14.8 Y0 I14.8 K0 
G0  Z2 
G1  X-14.77 Y-0.92 F150 
Z-0.1  
G3  X14.77 Y-0.92 I14.77 K0 
G0  Z2 
G1  X-14.685 Y-1.84 F150 
Z-0.1  
G3  X14.685 Y-1.84 I14.685 K0 
G0  Z2 
G1  X-14.54 Y-2.76 F150 
Z-0.1  
G3  X14.54 Y-2.76 I14.54 K0 
G0  Z2 
G1  X-14.335 Y-3.68 F150 
Z-0.1  
G3  X14.335 Y-3.68 I14.335 K0 
G0  Z2 
G1  X-14.065 Y-4.6 F150 
Z-0.1  
G3  X14.065 Y-4.6 I14.065 K0 
G0  Z2 
G1  X-13.73 Y-5.52 F150 
Z-0.1  
G3  X13.73 Y-5.52 I13.73 K0 
G0  Z2 
G1  X-13.325 Y-6.44 F150 
Z-0.1  
G3  X13.325 Y-6.44 I13.325 K0 
G0  Z2 
G1  X-12.84 Y-7.36 F150 
Z-0.1  
G3  X12.84 Y-7.36 I12.84 K0 
G0  Z2 
G1  X-12.265 Y-8.28 F150 
Z-0.1  
G3  X12.265 Y-8.28 I12.265 K0 
G0  Z2 
G1  X-11.59 Y-9.2 F150 
Z-0.1  
G3  X11.59 Y-9.2 I11.59 K0 
G0  Z2 
G1  X-10.795 Y-10.12 F150 
Z-0.1  
G3  X10.795 Y-10.12 I10.795 K0 
G0  Z2 
G1  X-9.855 Y-11.04 F150 
Z-0.1  
G3  X9.855 Y-11.04 I9.855 K0 
G0  Z2 
G1  X-8.715 Y-11.96 F150 
Z-0.1  
G3  X8.715 Y-11.96 I8.715 K0 
G0  Z2 
G1  X-7.29 Y-12.88 F150 
Z-0.1  
G3  X7.29 Y-12.88 I7.29 K0 
G0  Z2 
G1  X-5.345 Y-13.8 F150 
Z-0.1  
G3  X5.345 Y-13.8 I5.345 K0 
G0  Z2 
G1  X-1.535 Y-14.72 F150 
Z-0.1  
G3  X1.535 Y-14.72 I1.535 K0 
G0  G40 Z50 
X0  Y0 M5 M9 
M30

[mmachining]

Stefan, Thanks for the link. I cant seem to get it to work in inches. If I PM you the code I have would you mind running it for me? When I run it in Bob-cad it is not smooth in the simulation. but it looks good when you just look at the toolpaths.

[Mitsui Seiki]

Originally Posted by mmachining Stefan, Thanks for the link. I cant seem to get it to work in inches. If I PM you the code I have would you mind running it for me? When I run it in Bob-cad it is not smooth in the simulation. but it looks good when you just look at the toolpaths.

Go ahead and PM me.
If you want to change the program to inch,just click on "Settings" and login.Password is -login.
When you have done that,click on "Settings" again and then "Simulation settings" and you'll find what you're looking for.

[jshinn]

Originally Posted by Mitsui Seiki You don't disable or enable anything.Ok,sorta. Just use the right plane. XY=G17 Plane IJ XZ=G18 Plane IK YZ=G19 Plane JK With G18 you work in (Enable) the XZ plane.

I also have been trying to cut curves/radi in xz or yz. Where could I change or select the right plane? Do I chose this on the cad or cam side? When I am trying to cut curves in 3d it breaks it down to little lines and jerks the machine when cutting. If you have any ideas let me know please.
Thanks